Date: Wed, 11 Aug 2010 13:16:15 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Attilio Rao <attilio@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r211176 - in head/sys: amd64/amd64 i386/i386 Message-ID: <4C62DADF.1000202@FreeBSD.org> In-Reply-To: <201008111051.o7BApRp4028538@svn.freebsd.org> References: <201008111051.o7BApRp4028538@svn.freebsd.org>
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Attilio Rao wrote: > Author: attilio > Date: Wed Aug 11 10:51:27 2010 > New Revision: 211176 > URL: http://svn.freebsd.org/changeset/base/211176 > > Log: > IPI handlers may run generally with interrupts disabled because they > are served via an interrupt gate. > > However, that doesn't explicitly prevent preemption and thread > migration thus scheduler pinning may be necessary in some handlers. > Fix that. > > Tested by: gianni > MFC after: 1 month Actually that does prevent preemption if you do not call any code that would schedule a thread. I think this change is all safe to revert. -- John Baldwin
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